The most well-known bird to do this is the Cuckoo.
There are at least two. There are some groups of cuckoo, and the brown-headed cowbird that do this. This is called brood parasitism.
The most well known bird to do this is the Cukoo bird. Some might call it a cowbird.
cukoo bird, cat bird, cow bird
Brood Parasitism
Cuckoo
cuckoo
Only birds lay eggs
Birds, reptiles and fish lay eggs (although not all fish do). The platypus also lays eggs (it resembles a bird but is actually a mammal). animals like birds, fishes and reptiles lay eggs. These animals are collectively called oviparous animals.
They are called amniotic eggs.
Penguins are birds; they lay eggs.
I believe are called incubating birds, because they are incubating the eggs!
Birds that fly.
raccoon
birds duck
amnionic eggs
Birds, reptiles and insects
Nothing.
other birds, such as ducks and geese.